Basalt fibers for Fire protection, heat & sound insulations0 pages

Fire Protection,
Heat & Sound Insulation
Our advanced basalt fibers show 15-20% higher tensile strength and modulus, better chemical
resistance, extended operating temperature range than regular E glass, getting close to high
strength and corrosion resistant fibers but being less expensive.
Advanced basalt fibers for…
3450-3800
Mechanical properties Basalt fiber (Kamenny Vek)
Tensile strength of dry fiber (ASTM D3822), mN/tex 600-730
E glass
350-500
Tensile strength of single filaments (ASTM D2101), MPa 4000-4300
Tensile modulus of single filaments (ASTM D2101), GPa 84-87 72-76
up to +550
Thermal properties Basalt fiber (Kamenny Vek)
Application temperature, °C -260 up to +560
E glass
-60 up to +460
Short-term maximum operation temperature, °C up to +700
Heat conductivity, W/(m.°K) 0.031-0.038 0.034-0.04
Comparison of basalt and glass fibers
Basalt fibers have better sound insulation properties than glass fibers. Hence, with interior
based on basalt fiber you will feel yourself more comfortable.
The dielectric properties of basalt fibers are equal to ones of glass fibers. So, switch from
glass to basalt does not change radar transparency of construction.
After exposition under 400°C the basalt fibers lose only 20% of their initial strength, while
strength of E glass under the same conditions drops substantially - more than 50%.
- If you are interested in better fire protection and 150°C higher heat resistance than
with E glass materials but less expensive than silica, you need fabrics from our
basalt fiber
- If you need reliability, you will get it using materials made of our basalt fiber